NZIA (Net-Zero Insurance Alliance)

The Net-Zero Insurance Alliance (NZIA) was launched in July 2021 by eight large insurers and reinsurers, convened under the UN Environment Programme's Principles for Sustainable Insurance (PSI) initiative. Founding members included AXA, Allianz, Aviva, Generali, Munich Re, SCOR, Swiss Re, and Zurich. The alliance formed part of the broader Glasgow Financial Alliance for Net Zero (GFANZ), chaired by Mark Carney, ahead of the COP26 climate conference in Glasgow.

Members committed to individually transition their insurance and reinsurance underwriting portfolios to net-zero greenhouse gas emissions by 2050, consistent with limiting warming to 1.5°C above pre-industrial levels. The NZIA also produced the first Target-Setting Protocol for insurance underwriting emissions, published in January 2023, which provided methodologies for setting science-based intermediate targets.

The alliance faced significant turbulence in 2023. Beginning with Munich Re's departure in March 2023, a wave of insurers exited amid antitrust concerns raised by US state attorneys general. In May 2023, 23 Republican attorneys general, led by Missouri's Andrew Bailey and Utah's Sean Reyes, sent a letter to NZIA members warning that coordinated underwriting restrictions on fossil fuel clients could violate US and state antitrust laws. Within weeks, most founding members — including Allianz, AXA, SCOR, Swiss Re, and Zurich — withdrew.

In response, the UNEP PSI in July 2023 dropped the membership requirement to set targets and relaxed the framework. The alliance was formally restructured in April 2024 into the Forum for Insurance Transition to Net Zero (FIT), a broader, non-binding consultative forum open to insurers, regulators, and civil society, replacing the NZIA's commitment-based model.

For MUN and policy researchers, NZIA is a useful case study in the tension between private climate finance coalitions, antitrust law, and the political backlash against ESG in the United States.